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237c0abf
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2014-11-19T22:10:29
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Trailing space.
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d7f45943
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2014-05-13T15:33:11
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[autofit] Fix comment.
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abb3fcac
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2014-04-25T22:13:32
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* src/autofit/hbshim.c: Partially revert commit from 2014-04-17.
Using input glyph coverage data is simply wrong.
Problem reported by Nikolaus Waxweiler <madigens@gmail.com> and
Mantas Mikulėnas <grawity@gmail.com>.
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8c7fb78b
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2014-04-17T15:53:25
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[autofit] More coverage fixes for complex scripts.
* src/autofit/hbshim.c (af_get_coverage): Merge input glyph coverage
of GSUB lookups into output coverage. Otherwise, ligatures are not
handled properly.
Don't check blue zone characters for default coverage.
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8b1f2a6c
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2014-04-14T07:58:19
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[autofit] Improve coverage handling.
* src/autofit/hbshim.c (af_get_coverage): Don't exclude glyphs
appearing in the GPOS table if we are processing the default
coverage.
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23367ff9
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2014-03-17T07:33:14
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Fix Savannah bug #41869.
This works around a problem with HarfBuzz (<= 0.9.26), which doesn't
validate glyph indices returned by
`hb_ot_layout_lookup_collect_glyphs'.
* src/autofit/hbshim.c (af_get_coverage): Guard `idx'.
* docs/CHANGES: Updated.
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05565366
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2014-03-06T18:56:58
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Fixes for compilation with C++.
* src/autofit/hbshim.c (scripts): Change type to `hb_script_t'.
(af_get_coverage): Updated.
(COVERAGE): Add cast.
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91c7a97b
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2014-02-17T16:38:31
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[autofit] Fix `make multi' compilation.
* src/hbshim.c: Include `afglobal.h' and `aftypes.h'.
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a3364001
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2014-01-26T09:45:23
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[autofit] Introduce two more slots for standard characters.
This is useful for OpenType features like `c2sc' (caps to small
caps) that don't have lowercase letters by definition, or other
features that mainly operate on numerals.
* src/autofit/afscript.h: Add more standard characters.
* src/autofit/aftypes.h: Update use of `SCRIPT' macro.
(AF_ScriptClassRec): Add members to hold two more standard
characters.
(AF_DEFINE_SCRIPT_CLASS): Updated.
* src/autofit/afglobal.c, src/autofit/afglobal.h,
* src/autofit/afpic.c, src/autofit/afranges.h, src/autofit/hbshim.c:
Update use of `SCRIPT' macro.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths),
src/autofit/aflatin.c (af_latin_metrics_init_widths): Scan two more
standard characters.
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ff8dc315
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2014-01-22T09:19:57
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* src/autofit/hbshim.c (af_get_coverage): Fix memory leaks.
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2b623fe4
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2014-01-15T09:46:23
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Minor doc issues.
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ecdb0e35
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2014-01-03T20:49:31
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[autofit] Thinko.
* src/autofit/hbshim.c (af_get_char_index): Similar to
`af_get_coverage', reject glyphs which are not substituted.
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1b5bc897
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2014-01-03T18:33:24
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[autofit] Fix handling of default coverages.
With this commit, the implementation of coverage handling is
completed.
* src/autofit/hbshim.c (af_get_coverage): Exit early if nothing to
do.
Reject coverages which don't contain appropriate glyphs for blue
zones.
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f45749b0
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2014-01-03T18:09:36
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[autofit] Fix scaling of HarfBuzz shaping.
* src/autofit/hbshim.c (af_get_char_index): Scale to units per EM.
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abb2f730
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2014-01-01T08:00:16
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[autofit] Fix style assignments to glyphs.
* src/autofit/hbshim.c (af_get_coverage)
[FT_CONFIG_OPTION_USE_HARFBUZZ]: Scan GPOS coverage of features also
so that we can skip glyphs that have both GSUB and GPOS data.
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0950f3a5
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2014-01-01T07:48:20
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* src/autofit/hbshim.c: s/{lookups,glyphs}/gsub_{lookups,glyphs}/.
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73cc8330
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2014-01-01T07:10:36
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[autofit] Implement and use `af_get_char_index' with HarfBuzz.
* src/autofit/hbshim.c (COVERAGE) [FT_CONFIG_OPTION_USE_HARFBUZZ]:
Redefine to construct HarfBuzz features.
(af_get_char_index) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Rewritten.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Use
`y_offset' to adjust `best_y'.
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c9d9947c
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2013-12-31T08:16:57
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[autofit] Fix interface of `af_get_char_index'.
* src/autofit/hbshim.c (af_get_char_index): Return error value.
Add argument for y offset (to be used in a yet-to-come patch).
* src/autofit/hbshim.h, src/autofit/afcjk.c,
src/autofit/aflatin.c: Updated.
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44aa7e0a
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2013-12-30T07:41:22
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[autofit] Don't combine multiple features into one set.
Combining them, as originally envisioned, would lead to much more
complicated code, as investigations have shown meanwhile. The major
drawback is that we run out of available style slots much earlier.
However, this is only a theoretical issue since we don't support a
large number of scripts currently.
* src/autofit/afcover.h: Replace `COVERAGE_{1,2,3}' macros with
a single-element `COVERAGE' macro, sort the elements by the feature
tags, and add entry for `ruby'.
* src/autofit/aftypes.h: Updated.
* src/autofit/hbshim.c: Updated.
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072dc45d
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2013-12-28T12:26:21
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[autofit] Code shuffling to reduce use of cpp macros.
* src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
Call `af_get_coverage' unconditionally.
* src/autofit/autofit.c: Include `hbshim.c' unconditionally.
* src/autofit/hbshim.c (af_get_coverage)
[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Provide dummy function.
* src/autofit/hbshim.h: Provide function declarations
unconditionally.
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17af586e
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2013-12-28T10:33:01
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[autofit] Add wrapper function for `FT_Get_Char_Index'.
Yet-to-come changes will provide HarfBuzz functionality for the new
function.
* src/autofit/hbshim.c (af_get_char_index): New function.
* src/autofit/hbshim.h: Updated.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated.
* src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits):
Updated.
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6af01a04
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2013-12-28T08:55:24
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[autofit] Use `global' HarfBuzz font object.
We now use `hb_font' instead of `hb_face' since yet-to-come changes
need this.
* src/autofit/afglobal.h: Include `hbshim.h'.
(AF_FaceGlobalsRec) [FT_CONFIG_OPTION_USE_HARFBUZZ]: New member
`hb_font'.
* src/autofit/afglobal.c (af_face_globals_new)
[FT_CONFIG_OPTION_USE_HARFBUZZ]: Create `hb_font'.
(af_face_globals_free) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Destroy
`hb_font'.
* src/autofit/hbshim.h: Include HarfBuzz headers.
* src/autofit/hbshim.c: Include `hbshim.h' instead of HarfBuzz
headers.
(af_get_coverage): Updated.
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d32a7d32
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2013-12-27T19:26:04
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[autofit] Handle `DFLT' OpenType script for coverages.
* include/ftautoh.h: Document new `default-script' property.
* src/autofit/hbshim.c (af_get_coverage): Use `AF_FaceGlobals' for
type of first parameter.
(script_tags): Add one more element.
(af_get_coverage): Adjust `script_tags' to handle `DFLT' script tag.
* src/autofit/hbshim.h: Updated.
* src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
Updated.
* src/autofit/afglobal.h (AF_SCRIPT_DEFAULT): New macro.
* src/autofit/afmodule.h (AF_ModuleRec): New `default_script'
member.
* src/autofit/afmodule.c (af_property_set, af_property_get): Handle
`default-script' property.
(af_autofitter_init): Updated.
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19241347
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2013-12-21T21:31:38
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Introduce `coverages'.
Coverages are the interface to the HarfBuzz library to access
OpenType features for handling glyphs not addressable by the cmap.
Right now, compilation of HarfBuzz is only added to the development
build. A solution for standard build mode will be delayed until
HarfBuzz gets split into two libraries to avoid mutual dependencies
between FreeType and HarfBuzz.
Note that this is only a first step in handling coverages, basically
providing the framework only. Code for handling selected OpenType
features (this is, actually using the data in `afcover.h') will
follow.
* devel/ftoption.h, include/config/ftoption.h
(FT_CONFIG_OPTION_USE_HARFBUZZ): New macro.
* src/autofit/hbshim.c, src/autofit/hbshim.h, src/autofit/afcover.h:
New files.
* src/autofit/afscript.h: Add HarfBuzz script name tags.
* src/autofit/afstyles.h: Add default coverage enumeration values.
* src/autofit/aftypes.h: Update use of `SCRIPT' and `STYLE' macros.
(AF_Coverage): New enumeration (generated by `afcover.h').
(AF_StyleClassRec): New member `coverage'.
(AF_DEFINE_STYLE_CLASS): Updated.
* include/internal/fttrace.h: Add `afharfbuzz' for tracing coverage
data.
* src/autofit/afglobal.h: Update use of `SCRIPT' and `STYLE' macros.
(AF_SCRIPT_FALLBACK): Renamed to ...
(AF_STYLE_FALLBACK): ... this.
* src/autofit/afglobal.c: Include `hbshim.c'.
Update use of `SCRIPT' and `STYLE' macros.
(af_face_globals_compute_style_coverage)
[FT_CONFIG_OPTION_USE_HARFBUZZ]: Call `af_get_coverage'.
Update.
* src/autofit/afmodule.h (AF_ModuleRec):
s/fallback_script/fallback_style/.
* src/autofit/afmodule.c (af_property_set): Adapt handling of
`fallback-script' property to set a fallback style.
(af_property_get, af_autofitter_init): Updated.
* src/autofit/afpic.c: Update use of `SCRIPT' and `STYLE' macros.
* src/autofit/afranges.h: Update use of `SCRIPT' macro.
* src/autofit/autofit.c [FT_CONFIG_OPTION_USE_HARFBUZZ]: Include
`hbshim.c'.
* src/autofit/rules.mk (AUTOF_DRV_SRC): Add `hbshim.c'.
(AUTOF_DRV_H): Add `afcover.h'.
* builds/freetype.mk (INCLUDE_FLAGS) [DEVEL_DIR]: Use pkg-config for
all libraries needed by FreeType.
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